The RFID-WMS software helps to achieve better inventory control, as well as to improve operational efficiency. To this purpose, it automates the manual warehouse operation and provides tight integration with current warehouse management system (WMS). In this system, RFID tags are embedded in the pallets and shelves. In addition, forklifts are equipped with the intelligent terminal as well as RFID reader and antenna to support automatic data scanning and storage location checking. Moreover, a middle layer software component is designed to facilitate the communication between WMS, portable terminals and forklift terminals through wireless LAN. Besides, it also supports additional powerful functions such as forklift scheduling, picking sequence management and 3D shelves monitoring. The design of the system makes full use of the existing types of equipment and facilities and has the feature of low cost and quick in action.